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  • 根据年月日 获取星期

    /// <summary>根据日期,获得星期几</summary>
            /// <param name="y"></param>
            /// <param name="m"></param>
            /// <param name="d"></param>
            /// <returns>星期几,1代表星期一;7代表星期日</returns>
            private static int getWeekDay(int y, int m, int d)
            {
                if (m == 1) m = 13;
                if (m == 2) m = 14;
                int week = (d + 2 * m + 3 * (m + 1) / 5 + y + y / 4 - y / 100 + y / 400) % 7 + 1;
                return week;
            }
    
            /// <summary>
            /// 获取星期
            /// </summary>
            public static string GetWeek()
            {
                int m = System.DateTime.Today.Month;
                int y = System.DateTime.Today.Year;
                int d = System.DateTime.Today.Day;
                int weeks = getWeekDay(y, m, d);
                string Week = "";
                switch (weeks)
                {
                    case 1:
                        Week = "周一";
                        break;
                    case 2:
                        Week = "周二";
                        break;
                    case 3:
                        Week = "周三";
                        break;
                    case 4:
                        Week = "周四";
                        break;
                    case 5:
                        Week = "周五";
                        break;
                    case 6:
                        Week = "周六";
                        break;
                    case 7:
                        Week = "周日";
                        break;
                }
                return Week;
            }
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  • 原文地址:https://www.cnblogs.com/yy15611/p/13370655.html
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